create_collection

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description says 'Safe,' but this is already conveyed by the annotations (destructiveHint: false). No additional behavioral context is given—no mention of permissions, side effects, reversibility, or return behavior. It does not contradict the annotations, but it also adds no new information beyond them.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise, containing two short sentences with no filler. The main action is front-loaded, and every word earns its place, even if 'Safe' is slightly redundant.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple two-parameter tool with annotations and no output schema, the description is minimally adequate but incomplete. It fails to mention return values, constraints (e.g., unique collection names), or whether parent_key must reference an existing collection. More context would be needed for full self-sufficiency.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description only partially compensates by explaining that parent_key enables optional nesting. The required 'name' parameter is not described at all, and the schema already shows parent_key as optional with a default of null, so the added value is minimal.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description explicitly states 'Create a new collection, optionally nested under parent_key,' clearly identifying the action (create) and resource (collection), and distinguishing it from sibling tools like create_item or create_saved_search. The optional nesting adds specific scope.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives such as update_collection or create_item. There are no exclusions, preconditions, or references to sibling tools, leaving the agent to infer usage solely from the verb 'create.'

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.